J.C. is right, pylot.
Some selfish little twit on Mountain Project just posted/bragged about using that tree to rappel. I'll bet he's been climbing for months at most.
Those of us who have been doing that descent for years are seeing the slow decline of the tree. For now its the dirt and grass around its base. That's getting compressed and eroded. Noticeably. Unfortunately, I think that tree is doomed over the long run, although I hope I am wrong (this is due in no small part to people like our Mountain Project nitwit - his "convenience" is, after all, more important than that pretty little blue oak).
Thanks very much for doing the right thing.